Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Caryville Savanna State Natural Area | Park | 45 | Dunn | 44 45 13 N | 091 44 11 W |
| Case-Harmon Field | Park | 191 | Racine | 42 41 57 N | 087 48 03 W |
| Casey Lake State Wildlife Area | Park | 340 | St. Croix | 45 02 49 N | 092 24 35 W |
| Cassian-Woodboro County Recreation Area | Park | 510 | Oneida | 45 38 30 N | 089 33 40 W |
| Cassville Bluffs State Natural Area | Park | 262 | Grant | 42 42 04 N | 090 55 35 W |
| Castle Mound Pine Forest State Natural Area | Park | 44 | Jackson | 44 16 48 N | 090 49 20 W |
| Castle Mound Recreation Area | Park | 262 | Jackson | 44 16 53 N | 090 49 48 W |
| Castle Rock County Park | Park | 272 | Adams | 43 54 30 N | 089 56 22 W |
| Castle Rock County Park | Park | 272 | Juneau | 43 53 18 N | 089 58 32 W |
| Cathedral Square | Park | 193 | Milwaukee | 43 02 31 N | 087 54 18 W |
| Cave Point County Park | Park | 186 | Door | 44 55 49 N | 087 10 27 W |
| Cave Point County Park | Park | 186 | Door | 44 55 49 N | 087 10 27 W |
| Cecil Smith Athletic Field | Park | 194 | Crawford | 43 02 37 N | 091 08 33 W |
| Cedar Grove Hawk Research Station State Natural Area | Park | 44 | Sheboygan | 43 34 12 N | 087 47 26 W |
| Cedar Lake County Park | Park | 361 | Barron | 45 37 25 N | 091 35 37 W |
| Cedar Lake County Wayside Park | Park | 315 | Washington | 43 23 03 N | 088 14 25 W |
| Cedar Park | Park | 267 | Shawano | 44 44 39 N | 088 27 13 W |
| Cedarburg Bog Wildlife Refuge | Park | 265 | Ozaukee | 43 22 56 N | 088 00 38 W |
| Centennial Bedrock Glade State Natural Area | Park | 45 | Polk | 45 22 45 N | 092 39 42 W |
| Centennial Park | Park | 289 | Dane | 43 10 60 N | 089 28 03 W |
| Center Street Park | Park | 237 | Milwaukee | 43 04 02 N | 087 59 34 W |
| Central High School Athletic Fields | Park | 201 | La Crosse | 43 47 37 N | 091 12 58 W |
| Central Park | Park | 193 | Douglas | 46 42 48 N | 092 04 20 W |
| Central Park | Park | 190 | Douglas | 46 43 01 N | 092 04 28 W |
| Central Park | Park | 199 | Outagamie | 44 16 49 N | 088 16 20 W |
| Central Park | Park | 248 | Rock | 42 50 14 N | 089 04 02 W |
| Central Park | Park | 268 | Rock | 42 46 38 N | 088 57 16 W |
| Ceresco Park | Park | 265 | Fond du Lac | 43 50 53 N | 088 51 04 W |
| Chaffee Road Park | Park | 262 | Waukesha | 43 06 55 N | 088 30 59 W |
| Champion Field | Park | 260 | Waukesha | 43 06 13 N | 088 30 26 W |
| Chapman Park | Park | 332 | Chippewa | 44 57 54 N | 090 56 54 W |
| Charles C Jacobus Park | Park | 192 | Milwaukee | 43 02 32 N | 087 59 28 W |
| Charles D Pedersen Ball Park | Park | 186 | Marinette | 45 05 26 N | 087 38 25 W |
| Charles Pond State Natural Area | Park | | Oconto | 44 45 39 N | 087 56 31 W |
| Charles Pond State Public Hunting Grounds | Park | 177 | Oconto | 44 45 38 N | 087 56 29 W |
| Chaudoirs Dock County Park | Park | 187 | Door | 44 44 48 N | 087 41 47 W |
| Cherney Maribel Caves State Natural Area | Park | 44 | Manitowoc | 44 17 15 N | 087 46 21 W |
| Cherokee Marsh State Fishery Area | Park | 259 | Dane | 43 10 46 N | 089 21 18 W |
| Cherokee Marsh State Natural Area | Park | 261 | Dane | 43 09 55 N | 089 20 40 W |
| Cherokee Park | Park | 262 | Dane | 43 09 56 N | 089 21 53 W |
| Cherokee Park | Park | 388 | Marathon | 44 54 17 N | 090 13 21 W |
| Cherry Lake Sedge Meadow State Natural Area | Park | 43 | Racine | 42 43 34 N | 088 14 33 W |
| Chief River State Wildlife Management Area | Park | 417 | Sawyer | 46 00 46 N | 091 13 49 W |
| Chimney Rock State Public Hunting Grounds | Park | 318 | Trempealeau | 44 29 23 N | 091 27 17 W |
| Chimney Rock State Wetlands Area | Park | 292 | Dunn | 45 06 19 N | 092 04 55 W |
| Chiwaukee Prairie State Natural Area | Park | 181 | Kenosha | 42 31 40 N | 087 49 01 W |
| Christa McAuliffe Park | Park | 44 | Brown | 44 29 46 N | 087 55 39 W |
| Citizen Park | Park | 198 | Manitowoc | 44 06 22 N | 087 40 25 W |
| Citizens Field | Park | 301 | St. Croix | 45 07 12 N | 092 31 59 W |
| City Hall Park | Park | 304 | Grant | 42 44 07 N | 090 28 43 W |
| City Hall Square | Park | 182 | Milwaukee | 43 02 28 N | 087 54 35 W |
| Civic Center Plaza | Park | 188 | Milwaukee | 43 02 29 N | 087 55 18 W |
| Claflin County Park | Park | 177 | Door | 44 50 52 N | 087 33 02 W |
| Claflin County Park | Park | 177 | Door | 44 50 52 N | 087 33 02 W |
| Clam River State Fishery Area | Park | 357 | Burnett | 45 42 19 N | 092 04 40 W |
| Clark County Fairgrounds | Park | 354 | Clark | 44 33 03 N | 090 34 55 W |
| Clarke Park | Park | 257 | Dane | 43 04 39 N | 089 22 07 W |
| Clarke Park | Park | 197 | Milwaukee | 43 01 14 N | 087 56 35 W |
| Clausen Park | Park | 273 | Dodge | 43 34 08 N | 088 54 34 W |
| Clay Park | Park | 251 | Jefferson | 43 10 37 N | 088 43 28 W |
| Clear Lake Village Park | Park | 344 | Polk | 45 16 19 N | 092 16 60 W |
| Cleveland Park | Park | 201 | Sheboygan | 43 46 04 N | 087 44 15 W |
| Clover Valley Fen State Natural Area | Park | 257 | Walworth | 42 47 10 N | 088 42 14 W |
| Clovernook Playground | Park | 223 | Milwaukee | 43 08 13 N | 087 59 56 W |
| Clovis Park | Park | 230 | Winnebago | 44 13 01 N | 088 25 32 W |
| Clubhouse Springpond State Fishery Area | Park | 412 | Langlade | 45 09 06 N | 088 52 34 W |
| Coffey Swamp State Natural Area | Park | | Door | 45 24 12 N | 086 53 14 W |
| Colburn Park | Park | 194 | Brown | 44 31 04 N | 088 03 31 W |
| Cole Historic District | Park | 209 | Sheboygan | 43 43 45 N | 087 48 35 W |
| Cole Park | Park | 192 | Sheboygan | 43 45 46 N | 087 42 20 W |
| Collins Marsh State Wildlife Management Area | Park | 244 | Manitowoc | 44 06 18 N | 087 57 28 W |
| Collins Park | Park | 349 | Portage | 44 36 09 N | 089 20 36 W |
| Collipp-Worden Park | Park | 245 | Columbia | 43 33 23 N | 089 28 23 W |
| Columbia Park | Park | 229 | Fond du Lac | 43 54 55 N | 088 19 41 W |
| Columbia Park | Park | 230 | Winnebago | 44 10 55 N | 088 27 25 W |
| Columbia Park | Park | 395 | Wood | 44 40 12 N | 090 10 28 W |
| Columbus Park | Park | 303 | Fond du Lac | 43 35 43 N | 088 16 10 W |
| Columbus Park | Park | 189 | Kenosha | 42 35 09 N | 087 49 59 W |
| Columbus Park | Park | 213 | Milwaukee | 43 06 08 N | 088 00 11 W |
| Commons South Park | Park | 253 | Rock | 42 38 47 N | 089 02 41 W |
| Community Park | Park | 509 | Vilas | 46 02 60 N | 089 15 08 W |
| Comstock Bog-Meadow State Natural Area | Park | 44 | Marquette | 43 52 50 N | 089 17 34 W |
| Concordia Park | Park | 228 | Milwaukee | 43 04 47 N | 088 01 17 W |
| Congress Avenue Athletic Park | Park | 233 | Winnebago | 44 02 06 N | 088 32 57 W |
| Conner Park | Park | 378 | Wood | 44 39 43 N | 090 08 55 W |
| Consolidated County Park | Park | 326 | Portage | 44 29 28 N | 089 35 12 W |
| Conway Park | Park | 366 | Clark | 44 57 11 N | 090 48 25 W |
| Cooke Park | Park | 181 | Brown | 44 28 57 N | 088 02 50 W |
| Cookwood Park | Park | 204 | Racine | 42 43 38 N | 087 49 59 W |
| Coon Creek Cliffs State Natural Area | Park | 44 | Vernon | 43 42 54 N | 090 59 13 W |
| Coon Fork Barrens State Natural Area | Park | 45 | Eau Claire | 44 42 43 N | 091 01 02 W |
| Coon Fork Lake County Park | Park | 299 | Eau Claire | 44 41 42 N | 091 00 39 W |
| Cooper Avenue Playground | Park | 201 | Sheboygan | 43 46 16 N | 087 44 00 W |
| Cooper Park | Park | 229 | Milwaukee | 43 04 21 N | 088 01 16 W |
| Copeland Park | Park | 199 | La Crosse | 43 50 37 N | 091 14 55 W |
| Copeland Park | Park | 199 | La Crosse | 43 50 37 N | 091 14 55 W |
| Copper Culture Mounds State Park | Park | 182 | Oconto | 44 53 17 N | 087 53 56 W |
| Copper Falls State Park | Park | 46 | Ashland | 46 22 28 N | 090 38 28 W |
| Council Grounds State Park | Park | 397 | Lincoln | 45 11 10 N | 089 44 58 W |
| Cranberry Creek Mound Group State Natural Area | Park | 44 | Juneau | 44 09 44 N | 090 03 50 W |
| Crex Meadows State Public Hunting Grounds | Park | 287 | Burnett | 45 50 57 N | 092 36 54 W |
| Crex Meadows State Wildlife Refuge | Park | 287 | Burnett | 45 51 45 N | 092 37 26 W |
| Crex Sand Prairie State Natural Area | Park | 46 | Burnett | 45 52 48 N | 092 38 11 W |
| Crooked Lake Wetlands State Natural Area | Park | 44 | Sheboygan | 43 37 38 N | 088 09 44 W |
| Crystal Lake Park | Park | 257 | Dodge | 43 27 21 N | 088 48 12 W |
| Crystal Lake Park | Park | 271 | Trempealeau | 44 33 26 N | 091 22 59 W |
| Cudahy Nature Preserve | Park | 213 | Milwaukee | 42 55 36 N | 087 54 10 W |
| Culbertson Springs State Fishery Area | Park | 296 | Burnett | 45 57 28 N | 092 12 56 W |
| Culver Park | Park | 207 | Milwaukee | 43 03 19 N | 087 55 24 W |
| Currie Park | Park | 225 | Milwaukee | 43 04 58 N | 088 03 07 W |